From 2ac18802b58d671c10538e78d50a620baad9a188 Mon Sep 17 00:00:00 2001
From: metamuffin <metamuffin@disroot.org>
Date: Wed, 7 Dec 2022 21:23:42 +0100
Subject: advanced transform

---
 evc/src/refsampler.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'evc/src/refsampler.rs')

diff --git a/evc/src/refsampler.rs b/evc/src/refsampler.rs
index ad02332..16a0600 100644
--- a/evc/src/refsampler.rs
+++ b/evc/src/refsampler.rs
@@ -9,6 +9,7 @@ use crate::{
 #[derive(Debug, Clone)]
 pub struct Sampler<'a> {
     pub view: View<&'a Frame>,
+    pub halfsize: Vec2<f32>,
 
     pub translation: Vec2<f32>,
     pub transform: Mat2<f32>,
@@ -20,8 +21,8 @@ impl<'a> Sampler<'a> {
     #[inline]
     pub fn sample(&self, p: Vec2<f32>) -> Pixel {
         self.view
-            .sample(self.translation + p) // self.transform.transform(p))
-            // .scale(self.value_scale)
+            .sample(self.translation + self.transform.transform(p + self.halfsize) - self.halfsize)
+        // .scale(self.value_scale)
     }
     pub fn from_refblock(
         view: View<&'a Frame>,
@@ -38,6 +39,7 @@ impl<'a> Sampler<'a> {
                 c: map_scalar8(transform.c),
                 d: map_scalar8(transform.d),
             },
+            halfsize: Into::<Vec2<f32>>::into(view.size).scale(0.5),
             translation: Vec2 {
                 x: map_scalar8(translation.x),
                 y: map_scalar8(translation.y),
-- 
cgit v1.2.3-70-g09d2